The narrator tells us that mumu was killed by her classmates, and that the switch demon was created by her because she didn't like the way the classmates treated her. The narrator then tells us about the weird beggar who came to the house and tried to find her, but couldn't find her. She tells him to be careful, because he could be a "bad guy" . He tells her to come to him when she's sure of what's going on, and he'll tell her where to find the classmates. He also tells her that the weird guy is going to help her get revenge, or release her anger in her heart.